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Impact Evaluation of Merger Decisions

Author

Listed:
  • Oliver Budzinski

    (Department of Environmental and Business Economics, University of Southern Denmark)

Abstract
This paper provides a comparative analysis of methods for the empirical ex post evaluation of merger control decisions. It develops a competition-policy oriented framework of assessment criteria for the leading evaluation methods and applies them to structural modeling and simulation, differences-in-differences methods, event studies as well as survey-based methods. It concludes that a method-mix is recommendable, however, under the exclusion of event studies that fail to secure a minimum level of reliability regarding the evaluation results. Furthermore, it warns against overly optimistic expectations about the effects of systematic impact evaluations of merger decisions. I like to thank the participants of the OECD Roundtable „Impact Evaluation of Merger Decisions“ (Paris, Juni 2011), Arndt Christiansen and Knud Sinding for valua-ble comments on earlier versions of this paper as well as Janne Mordhorst for valuable editorial assistance.

Suggested Citation

  • Oliver Budzinski, 2011. "Impact Evaluation of Merger Decisions," Working Papers 112/11, University of Southern Denmark, Department of Sociology, Environmental and Business Economics.
    • Handle: RePEc:sdk:wpaper:112
    as

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    References listed on IDEAS

    as
    1. McAfee, R. Preston & Williams, Michael A., 1988. "Can event studies detect anticompetitive mergers?," Economics Letters, Elsevier, vol. 28(2), pages 199-203.
    2. Oliver Budzinski, 2009. "Modern Industrial Economics and Competition Policy: Open Problems and Possible Limits," Working Papers 93/09, University of Southern Denmark, Department of Sociology, Environmental and Business Economics.
    3. Josef Drexl & Wolfgang Kerber & Rupprecht Podszun (ed.), 2011. "Competition Policy and the Economic Approach," Books, Edward Elgar Publishing, number 13786.
    4. repec:pri:cepsud:140weinberg is not listed on IDEAS
    5. Oliver Budzinski & Isabel Ruhmer, 2010. "Merger Simulation In Competition Policy: A Survey," Journal of Competition Law and Economics, Oxford University Press, vol. 6(2), pages 277-319.
    6. Tomaso Duso & Klaus Gugler & Florian Szücs, 2013. "An Empirical Assessment of the 2004 EU Merger Policy Reform," Economic Journal, Royal Economic Society, vol. 123(11), pages 596-619, November.
    7. Oliver Budzinski, 2010. "An Institutional Analysis of the Enforcement Problems in Merger Control," Working Papers 101/10, University of Southern Denmark, Department of Sociology, Environmental and Business Economics.
    8. Aviv Nevo, 2000. "Mergers with Differentiated Products: The Case of the Ready-to-Eat Cereal Industry," RAND Journal of Economics, The RAND Corporation, vol. 31(3), pages 395-421, Autumn.
    9. Duso, Tomaso & Gugler, Klaus & Yurtoglu, Burcin, 2010. "Is the event study methodology useful for merger analysis? A comparison of stock market and accounting data," International Review of Law and Economics, Elsevier, vol. 30(2), pages 186-192, June.
    10. Eckbo, B Espen & Wier, Peggy, 1985. "Antimerger Policy under the Hart-Scott-Rodino Act: A Reexamination of the Market Power Hypothesis," Journal of Law and Economics, University of Chicago Press, vol. 28(1), pages 119-149, April.
    11. Orley C. Ashenfelter & Daniel S. Hosken & Matthew C. Weinberg, 2013. "The Price Effects of a Large Merger of Manufacturers: A Case Study of Maytag-Whirlpool," American Economic Journal: Economic Policy, American Economic Association, vol. 5(1), pages 239-261, February.
    12. Brian Diepold & Robert Feinberg & David Round & Jeremy Tustin, 2008. "Merger Impacts on Investor Expectations: An Event Study for Australia," International Journal of the Economics of Business, Taylor & Francis Journals, vol. 15(1), pages 45-62.
    13. Tenn, Steven & Yun, John M., 2011. "The success of divestitures in merger enforcement: Evidence from the J&J-Pfizer transaction," International Journal of Industrial Organization, Elsevier, vol. 29(2), pages 273-282, March.
    14. Duso, Tomaso & Gugler, Klaus & Yurtoglu, Burcin B., 2011. "How effective is European merger control?," European Economic Review, Elsevier, vol. 55(7), pages 980-1006.
    15. Tomaso Duso & Damien J. Neven & Lars-Hendrik Röller, 2007. "The Political Economy of European Merger Control: Evidence using Stock Market Data," Journal of Law and Economics, University of Chicago Press, vol. 50(3), pages 455-489.
    16. Sven‐Olof Fridolfsson & Johan Stennek, 2010. "Industry Concentration and Welfare: On the Use of Stock Market Evidence from Horizontal Mergers," Economica, London School of Economics and Political Science, vol. 77(308), pages 734-750, October.
    17. Mats Bergman, 2008. "Quis Custodiet Ipsos Custodes? or Measuring and Evaluating the Effectiveness of Competition Enforcement," De Economist, Springer, vol. 156(4), pages 387-409, December.
    18. Damien Neven & Hans Zenger, 2008. "Ex Post Evaluation of Enforcement: A Principal-Agent Perspective," De Economist, Springer, vol. 156(4), pages 477-490, December.
    19. Stillman, Robert, 1983. "Examining antitrust policy towards horizontal mergers," Journal of Financial Economics, Elsevier, vol. 11(1-4), pages 225-240, April.
    20. Pinkse, Joris & Slade, Margaret E., 2004. "Mergers, brand competition, and the price of a pint," European Economic Review, Elsevier, vol. 48(3), pages 617-643, June.
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    23. Matthew Weinberg, 2008. "The Price Effects Of Horizontal Mergers," Journal of Competition Law and Economics, Oxford University Press, vol. 4(2), pages 433-447.
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    25. Eckbo, B Espen, 1992. "Mergers and the Value of Antitrust Deterrence," Journal of Finance, American Finance Association, vol. 47(3), pages 1005-1029, July.
    Full references (including those not matched with items on IDEAS)

    Citations

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    Cited by:

    1. Budzinski Oliver & Kuchinke Björn A., 2012. "Deal or No Deal? Consensual Arrangements as an Instrument of European Competition Policy," Review of Economics, De Gruyter, vol. 63(3), pages 265-292, December.
    2. Budzinski, Oliver, 2012. "Empirische Ex-Post Evaluation von wettbewerbspolitischen Entscheidungen: Methodische Anmerkungen," Ilmenau Economics Discussion Papers 69, Ilmenau University of Technology, Institute of Economics.
    3. Haji Ali Beigi, Maryam & Budzinski, Oliver, 2012. "On the use of event studies to evaluate economic policy decisions: A note of caution," Ilmenau Economics Discussion Papers 80, Ilmenau University of Technology, Institute of Economics.

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    More about this item

    Keywords

    Empirical methods of industrial organization; merger control; competition policy; antitrust decisions; comparative analysis;
    All these keywords.

    JEL classification:

    • C18 - Mathematical and Quantitative Methods - - Econometric and Statistical Methods and Methodology: General - - - Methodolical Issues: General
    • C54 - Mathematical and Quantitative Methods - - Econometric Modeling - - - Quantitative Policy Modeling
    • L41 - Industrial Organization - - Antitrust Issues and Policies - - - Monopolization; Horizontal Anticompetitive Practices
    • L40 - Industrial Organization - - Antitrust Issues and Policies - - - General
    • K21 - Law and Economics - - Regulation and Business Law - - - Antitrust Law

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